{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78432",
    "entityType": "User",
    "nonce": "0x8c2a3f84ff7c5b6ff17c316a365793aba4830e7c1654a737bb31d0d16fdfe29f",
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    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
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}